
for i in range(1,100):

    sum1 = int(input("请输入第一个数："))
    fh = input("+-*/ ")
    sum2 = int(input("请输入第二个数："))
    if fh == "+":
        print(sum1 + sum2)
    elif fh == "-":
        print(sum1 - sum2)
    elif fh == "/":
        print(sum1 / sum2)
    else:
        print(sum1 * sum2)
next()



